I just had this same crash couple of minutes after booting from a live USB flash.  The only thing I did was change the CD from the CD-ROM and connect a(nother) USB flash drive into the computer.  I'm also attaching the var/crash file for compiz.real and copying the end what "dmesg" gave me at the terminal:

[   69.979044] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:01/device:02/input/input6
[   70.029529] ACPI: Video Device [VGA] (multi-head: yes  rom: no  post: no)
[   70.052976] acpi device:07: registered as cooling_device3
[   70.054048] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:06/input/input7
[   70.109278] ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
[   70.151377] ACPI: AC Adapter [ACAD] (on-line)
[   70.810542] iwl3945 0000:03:00.0: PCI INT A disabled
[   70.811210] sdhci-pci 0000:05:06.1: SDHCI controller found [1180:0822] (rev 19)
[   70.811230] sdhci-pci 0000:05:06.1: enabling device (0000 -> 0002)
[   70.811240] sdhci-pci 0000:05:06.1: PCI INT B -> GSI 23 (level, low) -> IRQ 23
[   70.812274] sdhci-pci 0000:05:06.1: Will use DMA mode even though HW doesn't fully claim to support it.
[   70.812287] sdhci-pci 0000:05:06.1: setting latency timer to 64
[   70.814364] mmc0: SDHCI controller on PCI [0000:05:06.1] using DMA
[   70.814503] Yenta: CardBus bridge found at 0000:05:04.0 [17aa:3828]
[   70.814539] Yenta: Using CSCINT to route CSC interrupts to PCI
[   70.814544] Yenta: Routing CardBus interrupts to PCI
[   70.814553] Yenta TI: socket 0000:05:04.0, mfunc 0x01111c12, devctl 0x44
[   71.045877] Yenta: ISA IRQ mask 0x0000, PCI irq 16
[   71.045885] Socket status: 30000006
[   71.045891] Yenta: Raising subordinate bus# of parent bus (#05) from #05 to #09
[   71.045902] pcmcia: parent PCI bridge I/O window: 0x2000 - 0x2fff
[   71.045908] cs: IO port probe 0x2000-0x2fff: clean.
[   71.046382] pcmcia: parent PCI bridge Memory window: 0xd0100000 - 0xd01fffff
[   71.046387] pcmcia: parent PCI bridge Memory window: 0x50000000 - 0x53ffffff
[   71.052957] Synaptics Touchpad, model: 1, fw: 6.3, id: 0x1a0b1, caps: 0xa04713/0x200000
[   71.080814] ACPI: Battery Slot [BAT1] (battery present)
[   71.130666] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio4/input/input8
[   71.612010] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[   71.612046] HDA Intel 0000:00:1b.0: setting latency timer to 64
[   71.949385] cs: IO port probe 0x100-0x3af: clean.
[   71.951578] cs: IO port probe 0x3e0-0x4ff: excluding 0x4d0-0x4d7
[   71.952553] cs: IO port probe 0x820-0x8ff: clean.
[   71.953320] cs: IO port probe 0xc00-0xcf7: clean.
[   71.954388] cs: IO port probe 0xa00-0xaff: clean.
[   83.288161] Adding 1485972k swap on /dev/sda5.  Priority:-1 extents:1 across:1485972k
[   83.511190] ip_tables: (C) 2000-2006 Netfilter Core Team
[   84.870632] ACPI: WMI: Mapper loaded
[   86.379676] warning: `avahi-daemon' uses 32-bit capabilities (legacy support in use)
[   86.426207] apm: BIOS not found.
[   86.519629] lp: driver loaded but no devices found
[   86.558698] ppdev: user-space parallel port driver
[   88.327657] cdrom: This disc doesn't have any tracks I recognize!
[   88.383950] cdrom: This disc doesn't have any tracks I recognize!
[   88.513888] Bluetooth: Core ver 2.13
[   88.514058] NET: Registered protocol family 31
[   88.514066] Bluetooth: HCI device and connection manager initialized
[   88.514076] Bluetooth: HCI socket layer initialized
[   88.539709] Bluetooth: L2CAP ver 2.11
[   88.539720] Bluetooth: L2CAP socket layer initialized
[   88.569227] Bluetooth: SCO (Voice Link) ver 0.6
[   88.569237] Bluetooth: SCO socket layer initialized
[   88.623387] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   88.623402] Bluetooth: BNEP filters: protocol multicast
[   88.647930] Bridge firewalling registered
[   88.648169] pan0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
[   88.699433] Bluetooth: RFCOMM socket layer initialized
[   88.699458] Bluetooth: RFCOMM TTY layer initialized
[   88.699465] Bluetooth: RFCOMM ver 1.10
[   92.157035] ACPI: EC: missing confirmations, switch off interrupt mode.
[   92.677041] ACPI Exception (evregion-0419): AE_TIME, Returned by Handler for [EmbeddedControl] [20080609]
[   92.677074] ACPI Error (psparse-0530): Method parse/execution failed [\_SB_.PCI0.LPCB.ACAD._PSR] (Node f7817768), AE_TIME
[   92.677140] ACPI Exception (ac-0136): AE_TIME, Error reading AC Adapter state [20080609]
[   92.781718] [drm] Initialized drm 1.1.0 20060810
[   92.795661] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   92.795677] pci 0000:00:02.0: setting latency timer to 64
[   92.795905] [drm] Initialized i915 1.6.0 20060119 on minor 0
[   92.916436] eth0: link down
[   92.952670] iwl3945 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   92.952872] iwl3945 0000:03:00.0: restoring config space at offset 0x1 (was 0x100102, writing 0x100106)
[   92.956794] firmware: requesting iwlwifi-3945-1.ucode
[   93.054525] Registered led device: iwl-phy0:radio
[   93.055421] Registered led device: iwl-phy0:assoc
[   93.056183] Registered led device: iwl-phy0:RX
[   93.056458] Registered led device: iwl-phy0:TX
[   93.211550] NET: Registered protocol family 17
[   95.360570] wlan0: authenticate with AP 00:40:96:52:d3:9e
[   95.363646] wlan0: authenticated
[   95.363660] wlan0: associate with AP 00:40:96:52:d3:9e
[   95.370545] wlan0: RX AssocResp from 00:40:96:52:d3:9e (capab=0x1 status=17 aid=0)
[   95.370559] wlan0: AP denied association (code=17)
[   95.561038] wlan0: associate with AP 00:40:96:52:d3:9e
[   95.761039] wlan0: associate with AP 00:40:96:52:d3:9e
[   95.961029] wlan0: association with AP 00:40:96:52:d3:9e timed out
[  110.613643] ISO 9660 Extensions: Microsoft Joliet Level 3
[  110.615826] ISOFS: changing to secondary root
[  117.602659] iwl3945: No space for Tx
[  117.602676] iwl3945: Error sending REPLY_LEDS_CMD: iwl3945_enqueue_hcmd failed: -28
[  119.912465] CPU0 attaching NULL sched-domain.
[  119.912482] CPU1 attaching NULL sched-domain.
[  119.917145] CPU0 attaching sched-domain:
[  119.917157]  domain 0: span 0-1 level MC
[  119.917163]   groups: 0 1
[  119.917174] CPU1 attaching sched-domain:
[  119.917179]  domain 0: span 0-1 level MC
[  119.917183]   groups: 1 0
[  221.352153] usb 5-7: new high speed USB device using ehci_hcd and address 3
[  221.492273] usb 5-7: configuration #1 chosen from 1 choice
[  221.525525] scsi3 : SCSI emulation for USB Mass Storage devices
[  221.526252] usb-storage: device found at 3
[  221.526262] usb-storage: waiting for device to settle before scanning
[  226.524400] usb-storage: device scan complete
[  226.525628] scsi 3:0:0:0: Direct-Access     DaneElec Dane Elec 1=2    PMAP PQ: 0 ANSI: 0 CCS
[  226.995853] sd 3:0:0:0: [sdc] 2015232 512-byte hardware sectors (1032 MB)
[  226.998431] sd 3:0:0:0: [sdc] Write Protect is off
[  226.998443] sd 3:0:0:0: [sdc] Mode Sense: 23 00 00 00
[  226.998449] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[  227.006677] sd 3:0:0:0: [sdc] 2015232 512-byte hardware sectors (1032 MB)
[  227.009173] sd 3:0:0:0: [sdc] Write Protect is off
[  227.009185] sd 3:0:0:0: [sdc] Mode Sense: 23 00 00 00
[  227.009190] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[  227.013636]  sdc: sdc1
[  227.015747] sd 3:0:0:0: [sdc] Attached SCSI removable disk
[  227.017536] sd 3:0:0:0: Attached scsi generic sg4 type 0
[  234.833914] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[  271.598767] NET: Registered protocol family 10
[  271.600299] lo: Disabled Privacy Extensions
[  271.602540] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  282.544131] eth0: no IPv6 routers present